CN105491570A - Signaling method for sharing unlicensed spectrum between different radio access technologies and related apparatuses using the same - Google Patents
Signaling method for sharing unlicensed spectrum between different radio access technologies and related apparatuses using the same Download PDFInfo
- Publication number
- CN105491570A CN105491570A CN201510639865.7A CN201510639865A CN105491570A CN 105491570 A CN105491570 A CN 105491570A CN 201510639865 A CN201510639865 A CN 201510639865A CN 105491570 A CN105491570 A CN 105491570A
- Authority
- CN
- China
- Prior art keywords
- transmission
- radio access
- access technologies
- unlicensed spectrum
- lte
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/14—Spectrum sharing arrangements between different networks
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/02—Terminal devices
- H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/04—Large scale networks; Deep hierarchical networks
- H04W84/042—Public Land Mobile systems, e.g. cellular systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/10—Small scale networks; Flat hierarchical networks
- H04W84/12—WLAN [Wireless Local Area Networks]
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The disclosure is directed to a signaling method for sharing an unlicensed spectrum between different radio access technologies used by a base station and a multi-mode wireless device, a multi-mode wireless device using the same method, and a base station using the same method. According to one of the exemplary embodiments, the disclosure is directed to a signaling method for sharing an unlicensed spectrum between different radio access technologies used by a base station. The method may include not limited to receiving a first transmission via a receiver of a first radio access technology over an unlicensed spectrum, calculating a channel information of the first transmission in response to receiving the first transmission, configuring a second transmission based on the first channel information of the first transmission, and transmitting the second transmission via a transmitter of a second radio access technology over the unlicensed spectrum.
Description
Technical field
The present invention relates to a kind of signal transfer method for sharing unlicensed spectrum between the different radio access technologies used by base station and multimode wireless devices, a kind ofly using the multimode wireless devices of described signal transfer method and a kind of base station using described signal transfer method.
Background technology
Conventionally, wireless communication system operates in special-purpose radio-frequency (radiofrequency, RF) frequency spectrum, and wherein base station is communicated by the dedicated RF frequency spectrum licensing to cellular carrier with wireless terminal.Recently existed and will use the discussion expanded to also referred to as the wireless communication system in the free frequency spectrum of unlicensed spectrum, described free frequency spectrum such as, industry, science and medical RF spectrum (ISM (Industrial, ScientificandMedical) frequency range) or be not special and therefore for citizen's other frequency spectrum freely.Long Term Evolution (LongTermEvolution, LTE) or the LTE-advanced communication system (ACS) possibility expanded in unlicensed spectrum have attracted the attention of telecommunication apparatus supplier and operator.One of reason of this interest is the potential overcrowding of mandate frequency spectrum.In order to provide high-throughput services to more users, expanding in unlicensed spectrum and can provide benefit for wireless communication system.
In September, 2014, new research project, that is, " research of access is assisted in the mandate about use LTE " is approved for the investigation about 3rd Generation Partnership Project (3rdGenerationPartnershipProject, 3GPP) the 13rd edition.For being also called unauthorized LTE (LTE-U) to the framework of the auxiliary access (Licensed-AssistedAccess, LAA) of the mandate of unlicensed spectrum, this can be the key feature of Next generation cellular system potentially.
The challenge relevant with the conventional cellular system operated in unlicensed spectrum is by the operation that is included in probabilistic environment and other potential coexistence problems.When communicating in unauthorized or shared frequency spectrum, other communicator (using same radio access technology or different radio access technologies) wanting to use identical unlicensed spectrum or used identical unlicensed spectrum may be there is.Such as, the communication of LTE system operates under may needing the uncertain characteristic of other device under the control domain not being in LTE wireless system.More particularly, LTE communication system may need and Wi-Fi coexistent radio.
In unauthorized frequency range, the device under the territory of LTE system can not may be launched at any given time or receive due to frequency spectrum share.This different from the conventional cell LTE operation wherein spectrum authorization being used for launching or receiving and therefore LTE system have and authorize the exclusiveness of frequency spectrum to control.In order to process uncertainty, needs are modified by current LTE communication system, to coexist with the device under the territory not being in LTE communication system.Except for the treatment of except this probabilistic amendment, the transmitting of signaling message in unlicensed spectrum or receive needs are carried out design effectively.
More particularly, can be relevant with channel measurement with the potential challenge of frequency spectrum share in the middle of different radio access technologies.Although base station can use it to authorize frequency range to transmit required information to subscriber equipment (userequipment, UE), as long as use unlicensed spectrum just to need to perform the channel measurement of unlicensed spectrum between base station and UE.Such as, base station can be launched usually by the reference signal that received by UE or pilot signal.UE can perform channel measurement based on reference signal or pilot signal subsequently.Reference signal can be (such as) channel state information reference signals (channelstateinformationreferencesignal, CSI-RS).After acquisition CSI-RS, UE can measure the CSI that can feed back to base station subsequently subsequently.But, because transmitting can be returned base station or Wi-Fi access point (accesspoint by using identical unlicensed spectrum to perform by LTE-U device and Wi-Fi device usually, AP) channel measurement, therefore when with may occur controlled way does not realize frequency spectrum share interference.
Summary of the invention
Therefore, the present invention relates to a kind of signal transfer method for sharing unlicensed spectrum between the different radio access technologies used by base station and multimode wireless devices, a kind ofly using the multimode wireless devices of described signal transfer method and a kind of base station using described signal transfer method.
In in the exemplary embodiment one, the present invention relates to a kind of signal transfer method for sharing unlicensed spectrum between the different radio access technologies used by base station.Described method will comprise (being not limited to) receives the first transmission via the receiver with the first radio access technologies on unlicensed spectrum; The first channel information of described first transmission is calculated in response to receiving described first transmission; Based on described first channel information configuration second transmission of described first transmission; And on described unlicensed spectrum, launch described second transmission via the reflector with the second radio access technologies.
In in the exemplary embodiment one, the present invention relates to a kind of Multi-Mode Base Station supporting multiple radio access technologies.Described base station will comprise, and (being not limited to) has the receiver of the first radio access technologies, and it is configured for and receives the first transmission on unlicensed spectrum; Processor, it is couple to described receiver and is configured in response to receiving described first transmission and calculates the channel information of described first transmission and described channel information configuration second transmission based on described first transmission; And reflector, it is couple to described processor and is configured for launches described second transmission via the second radio access technologies on described unlicensed spectrum.
In in the exemplary embodiment one, the present invention relates to the signal transfer method sharing unlicensed spectrum between a kind of different radio access technologies for using at the multimode wireless devices by the multiple radio access technologies of support.Described method will comprise (being not limited to) receives the first transmission via the receiver with the first radio access technologies on unlicensed spectrum; The first channel information of described first transmission is calculated in response to receiving described first transmission; And on described unlicensed spectrum, transmit the second transmission via the reflector with the second radio access technologies.
Being convenient to make preceding feature of the present invention and advantage understand, hereafter will describing the exemplary embodiment with each figure in detail.Should be understood that describe, in general terms and following detailed description are all exemplary above, and set providing of the present inventionly to further illustrate to advocated.
However, it should be understood that, content of the present invention can not comprise all aspects of the present invention and embodiment, and does not therefore wish to be limited in any way or retrain.In addition, the present invention will comprise improvement and the amendment of those skilled in the art's easy understand.
Accompanying drawing explanation
Comprise accompanying drawing to provide a further understanding of the present invention, and accompanying drawing to be incorporated in this specification and to form the part of this specification.Graphic explanation embodiments of the invention, and principle of the present invention is explained together with specification.
Fig. 1 is the signal transmission figure sharing the method for unlicensed spectrum between different access technologies relating to channel measurement according to the explanation of in exemplary embodiment of the present invention;
Fig. 2 illustrates the signal transmission figure sharing the method for unlicensed spectrum between different radio access technologies relating to information feed back according to the explanation of in exemplary embodiment of the present invention;
Fig. 3 illustrates the signal transmission figure sharing the method for unlicensed spectrum between different radio access technologies relating to channel measurement and the subsequent configuration based on channel measurement according to the explanation of in exemplary embodiment of the present invention;
Fig. 4 illustrates the signal transmission figure sharing the method for unlicensed spectrum between different radio access technologies relating to channel measurement, feedback information and the subsequent configuration based on feedback information according to the explanation of in exemplary embodiment of the present invention;
Fig. 5 illustrates and relates to channel measurement according to the explanation of in exemplary embodiment of the present invention and based on the signal transmission figure of method sharing unlicensed spectrum between different radio access technologies of subsequent configuration auditing transmitting;
Fig. 6 illustrates and illustrates at the auxiliary signal transmission figure accessing the method sharing unlicensed spectrum between (licensed-assistedaccess, LTE-U) and Wi-Fi radio access technologies of mandate according in exemplary embodiment of the present invention;
Fig. 7 illustrates and illustrates at the auxiliary signal transmission figure accessing the method sharing unlicensed spectrum between (licensed-assistedaccess, LTE-U) and Wi-Fi radio access technologies of mandate according to another in exemplary embodiment of the present invention;
Fig. 8 illustrates that the variant being similar to Fig. 7 according to the present invention illustrates and is authorizing the signal transmission figure sharing the method for unlicensed spectrum between auxiliary access (licensed-assistedaccess, LTE-U) and Wi-Fi radio access technologies;
Fig. 9 illustrates the signal transmission figure sharing the method for unlicensed spectrum between the auxiliary access (licensed-assistedaccess, LTE-U) of mandate and Wi-Fi radio access technologies relating to channel feedback and subsequent configuration according to the explanation of in exemplary embodiment of the present invention;
Figure 10 illustrates the exemplary scenario of wherein authorizing auxiliary access (licensed-assistedaccess, LTE-U) to coexist with Wi-Fi radio access technologies;
Figure 11 is about the hardware of functional block diagram illustrated example base station;
Figure 12 is about the hardware of functional block diagram illustrated example multimode wireless devices;
Figure 13 illustrates according in exemplary embodiment of the present invention for sharing the flow chart of the signal transfer method of unlicensed spectrum between the different radio access technologies used by base station;
Figure 14 illustrates according in exemplary embodiment of the present invention for sharing the flow chart of the signal transfer method of unlicensed spectrum between the different radio access technologies used by multimode wireless devices;
Figure 15 illustrates the content of the configuration signal message according in exemplary embodiment of the present invention.
Description of reference numerals:
11,31,51,61: base station;
13:Wi-Fi device;
15,35,55,65: multimode wireless devices;
33:LTE-U device;
53:Wi-Fi access point;
250: multimode wireless devices;
1201,1251: processor;
1202a-1202c, 1252a-1252b: D/A/A/D converter;
1203a, 1254a:LTE-U reflector;
1203b, 1254b:LTE-U receiver;
1204a, 1253a:Wi-Fi reflector;
1204b, 1253b:Wi-Fi receiver;
1205a:LTE reflector;
1205b:LTE receiver;
1206: non-transitory medium;
1206,1256: memory module;
1206a, 1256b:LTE-U protocol module;
1206b, 1256a:Wi-Fi protocol module;
1206c:LTE protocol module;
1207,1257: antenna;
1501: System information block;
1502: capability signaling message;
1503: designator;
1504: map entry;
1505: binary digit;
1506: system information;
1507: information unit.
Embodiment
With detailed reference to of the present invention exemplary embodiment, the example of described exemplary embodiment illustrates in the accompanying drawings.As possible, identical Reference numeral in graphic and specification in order to refer to same or similar part.
Because transmitting or receiver can be uncertain, therefore can be configured unauthorized LTE carrier wave in strategy.In order to make different radio access technologies coexist, base station or eNB through design to provide multimodality in unlicensed spectrum, such as, can authorize auxiliary LTE access and Wi-Fi.Some multimode wireless devices or subscriber equipment can also authorize auxiliary LTE radio and the Wi-Fi radio based on Institute of Electrical and Electric Engineers (InstituteofElectricalandElectronicEngineers, IEEE) 802.11 through design to have.Same wireless infrastructure node (such as, base station or access point) or in unauthorized frequency range the same wireless device of trustship more than one radio access technologies can be called common location node or common positioner, reason is, even if authorize auxiliary LTE access different with Wi-Fi radio access technologies, assuming that LTE-U and Wi-Fi radio uses identical unlicensed spectrum or overlapping most unlicensed spectrum, then their bottom wireless channel also can be substantially the same.Therefore, LTE radio and the Wi-Fi radio based on IEEE802.11 is assisted for using the mandate of same frequency spectrum, such as channel condition information (channelstateinformation, CSI), the radio condition such as interference level or multiple-input and multiple-output (MultipleInputMultipleOutput, MIMO) space channel state can substantially the same or height correlation.By using relevant channel information, when the frequency that signaling can be exchanged reduces, systematic function can exchange due to extraneous information (collecting from different radio) and the signaling reduced and be improved.In the present invention, a kind of signal transfer method being used to indicate common locating base station or being total to locating wireless device is described.In addition, after the instruction receiving locating information altogether, what also operated by description wireless communication system can operating mechanism.
Figure 10 illustrates the example of the wireless communication system of shared unlicensed spectrum.Wireless communication system is not limited to LTE-U and Wi-Fi operation.With reference to the example of Figure 10, communication system can comprise (being not limited to) base station or eNB11, Wi-Fi device 13 are (namely, have the UE of Wi-Fi transceiver), LTE-U device 33 (namely, have the UE of LTE-U transceiver), Wi-FiAP53 and multiple multimode wireless devices (such as, 15,35,55), described multimode wireless devices is the device supporting multiple radio access technologies.Device 13,33,53,15,35,55 may reside in the service coverage area of BS11, and described BS can be run by the LTE/LTE-A agreement of Wi-Fi agreement and LTE-U agreement and routine.Such as, BS11 can be provided for authorizing the control signal being activated the transmitting of LTE-U data in frequency spectrum by LTE protocol.
Figure 11 is about the hardware of functional block diagram illustrated example base station (such as, 11).Term " base station " (BS) in the present invention can represent various embodiment, such as, described embodiment can be including but not limited to, home evolved node B (HomeEvolvedNodeB, HeNB), eNB, Node B, grand BS, miniature BS, senior base station (advancedbasestation, ABS), base station transceiver system (basetransceiversystem, BTS), access point (accesspoint, AP), Home eNodeB, relay station, diffuser, repeater, intermediate node, intermediate and/or satellite-based communication base station.
From the angle of hardware, BS can comprise at least function element, as illustrated in Figure 11.With reference to Figure 11, BS will comprise at least but be not limited to, processor and/or controller 1201 (hereinafter referred to as " processor 1201 "), one or more D/A (digital-to-analog, D/A)/mould/number (analog-to-digital, A/D) transducer 1202a to 1202c, optionally LTE-U reflector (TX) 1203a and LTE-U receiver (RX) 1203b, Wi-FiTX1204a and Wi-FiRX1204b, LTETX1205a and LTERX1205b, non-transitory medium 1206 and antenna 1207.
Processor 1201 be configured to processing digital signal and perform that exemplary embodiment according to the present invention describes hereinafter share between different radio access technologies unlicensed spectrum the program of signal transfer method is proposed.In addition, processor 1201 can be couple to memory module 1206 (such as, LTE-U protocol module 1206a, Wi-Fi protocol module 1206b and LTE protocol module 1206c) with storing software program, procedure code, device configuration, code book, buffering or permanent data etc.Processor 1201 is configured to access and the module of executive logging in memory module 1206.The function of processor 1201 can by using such as microprocessor, microcontroller, digital signal processor (digitalsignalprocessor, DSP) programmable unit such as chip, field programmable gate array (fieldprogrammablegatearray, FPGA) is implemented.The function of processor 1201 also can be implemented by independent electronic installation or integrated circuit (integratedcircuit, IC), and can also be implemented in the territory of any one in hardware or in software by the function that processor 1201 performs.
LTE-U protocol module 1206a will support LTE-U agreement.This processor 1201 meaning to perform LTE-U protocol module 1206a can convert digital massage to form with LTE-U protocol-compliant, and the cellular network of such as evolved universal terrestrial radio Access Network (EvolvedUniversalTerrestrialRadioAccessNetwork, E-UTRAN) etc. can be accessed.Wi-Fi protocol module 1206b is by support 802.11 (or Wi-Fi) agreement.This processor 1201 meaning to perform Wi-Fi protocol module 1206b will according to IEEE802.11 standard or similar standard (such as, IEEE802.11x) digital massage is converted to the form with Wi-Fi protocol-compliant, and can accessing WLAN (wirelesslocalaccessnetwork, WLAN).LTE protocol module 1206c will support LTE protocol.This processor 1201 meaning to perform LTE protocol module 1206c can convert digital massage to form with LTE protocol compatibility, and can access the cellular network of such as E-UTRAN etc.It should be noted that LTE protocol module 1206c can optionally combine with 3G and/or 2G protocol module.
In addition, the processor 1201 of BS may be used for coordinating different radio access technologies (RadioAccessTechnology, RAT).Such as, the processor 1201 of BS can coordinate two or more RAT, such as, uses the radio adaptation of Wi-Fi and LTE-U of identical unlicensed spectrum.The processor 1201 of BS can coordinate radiotechnics, such as, and the radio adaptation LTE of use authority frequency spectrum and unlicensed spectrum.UE can communicate with BS with unlicensed spectrum by use authority frequency spectrum.
It should be noted that BS can be used as the combination of at least two devices.A device of such as eNB is for the treatment of LTE and LTE-U operation, and another device of such as Wi-FiAP operates for the treatment of Wi-Fi.Two devices of BS can have himself processor or controller, and have inter-base station interface between two devices for exchanging control signal between LTE and LTE-U operates and Wi-Fi operates.Inter-base station interface can be (such as but not limited to) cable, optical fiber or radio interface.Such as, control signal may be used for configuring the uncontended periods in unlicensed spectrum.
In another embodiment, BS can be used as traditional B S, but has LTE-U ability.The processor 1201 of BS may be used for processing all LTE, LTE-U and Wi-Fi operation, and comprises the inter-base station interface of the control signal of the coordination configuration between every two protocol modules for exchanging in LTE-U protocol module 1206a, Wi-Fi protocol module 1206b and LTE protocol module 1206c.Inter-base station interface can be the physics or dummy line set up by cable or software.
D/A/A/D transducer 1202a to 1202c is configured to during uplink signal process, convert digital signals format to from analog signal format and convert analog signal format to from digital signals format during down link signal process.
At unlicensed spectrum place (such as, 5GHz, 2.4GHz, other industry, science and medical treatment (Industrial, ScientificandMedical, ISM) radio frequency band, or unauthorized national information infrastructure (UnlicensedNationalInformationInfrastructure, U-NII) frequency range) operate LTE-UTX1203a and LTE-URX1203b, be respectively used to transmit and receive modulation signal, described modulation signal can be the RF wireless signals (by one or more antenna 1207) for LTE-U protocol module 1206a.Be respectively used to transmit and receive modulation signal at Wi-FiTX1204a and Wi-FiRX1204b of unlicensed spectrum place operation, described modulation signal can be the RF wireless signals (by one or more antenna 1207) for Wi-Fi protocol module 1206b.Can be identical or different by the unlicensed spectrum of LTE-UTX1203a, LTE-URX1203b, Wi-FiTX1204a and Wi-FiRX1204b operation.In addition, LTE-UTX1203a, LTE-URX1203b, Wi-FiTX1204a and Wi-FiRX1204b may be used for sensing the transmission of other device in unlicensed spectrum.Authorizing LTETX1205a and LTERX1205b of frequency spectrum place operation, such as, frequency band 700MHz, 850MHz, 1800MHz, 1900MHz, 2100MHz etc. are respectively used to transmit and receive modulation signal, and described modulation signal can be the RF wireless signals (by one or more antenna 1207) for LTE protocol module 1206c.LTE-UTX1203a and LTE-RX1203b, Wi-FiTX1204a and Wi-FiRX1204b, and LTETX1205a and LTERX1205b can also perform the operation of such as low noise amplification, impedance matching, frequency compounding, up-conversion or down-conversion, filtering, amplification etc.
Memory module 1206 can be the fixed or movable device in any possibility form (comprising non-transitory computer-readable recording medium), such as, random access memory (randomaccessmemory, RAM), read-only memory (read-onlymemory, ROM), flash memories or other similar device, or the combination of said apparatus.
Figure 12 is about the hardware of functional block diagram illustrated example multimode wireless devices.Multimode wireless devices in the present invention will be supported multiple radio access technologies and can represent various embodiment, such as, described embodiment can be including but not limited to, desktop computer, laptop computer, computer, server, client, work station, personal digital assistant (personaldigitalassistant, PDA), tablet personal computer (tabletpersonalcomputer, PC), scanner, telephone device, beep-pager, camera, television set, handheld video gaming device, music apparatus, wireless senser etc.In some applications, multimode wireless devices can be the stationary computer device of operation in mobile environment (such as, bus, train, aircraft, ship, automobile etc.).
From the angle of hardware, can be represented by least function element according to embodiments of the invention multimode wireless devices, as illustrated in Figure 12.With reference to Figure 12, multimode wireless devices 250 will be including but not limited to, processor and/or controller 1251 (hereinafter referred to as " processor 1251 "), one or more D/A/A/D transducer 1252a to 1252b, Wi-FiTX1253a and Wi-FiRX1253b, optionally LTE-UTX1254a and LTE-URX1254b, memory module 1256 and antenna 1257.
Processor 1251 be configured to processing digital signal and perform that exemplary embodiment according to the present invention describes hereinafter share between different radio access technologies unlicensed spectrum the program of signal transfer method is proposed.In addition, processor 1251 can be couple to memory module 1256 (such as, Wi-Fi protocol module 1256a and LTE-U signalling module 1256b) with storing software program, procedure code, device configuration, code book, buffered data or permanent data etc.Processor 1251 is configured to access and the module of executive logging in memory module 1256.The function of processor 1251 can be implemented by using the programmable units such as such as microprocessor, microcontroller, dsp chip, FPGA.The function of processor 1251 also can be implemented by independent electronic installation or IC, and can also be implemented in the territory of any one in hardware or in software by the function that processor 1251 performs.
Wi-Fi protocol module 1256a is by support 802.11 (or Wi-Fi) agreement.Digital massage can convert to the form of Wi-Fi protocol-compliant and can access WLAN by this processor 1251 meaning to perform Wi-Fi protocol module 1256a.LTE-U signalling module 1256b will support LTE-U agreement.This processor 1251 meaning to perform LTE-U signalling module 1256b can convert digital massage to form with LTE-U protocol-compliant, and can access the cellular network of such as E-UTRAN etc.
In addition, processor 1251 may be used for coordinating different RAT.Such as, processor 1251 can coordinate two or more RAT, such as, uses the radio adaptation of Wi-Fi and LTE-U of identical unlicensed spectrum.
D/A/A/D transducer 1252a to 1252b is configured to during uplink signal process, convert digital signals format to from analog signal format and convert analog signal format to from digital signals format during down link signal process.
Be respectively used to transmit and receive modulation signal at Wi-FiTX1253a and Wi-FiRX1253b of unlicensed spectrum place operation, described modulation signal can be the RF wireless signals (by one or more antenna 1257) for Wi-Fi protocol module 1256a.LTE-UTX1254a and LTE-URX1254b operated in unlicensed spectrum is respectively used to transmit and receive modulation signal, and described modulation signal can be the RF wireless signals (by one or more antenna 1257) for LTE-U signalling module 1256b.Can be identical or different by the unlicensed spectrum of Wi-FiTX1253a and Wi-FiRX1253b, LTE-UTX1254a and LTE-URX1254b operation.In addition, Wi-FiTX1253a and Wi-FiRX1253b, LTE-UTX1254a and LTE-URX1254b may be used for sensing the transmitting of other device in unlicensed spectrum.
Memory module 1256 can be the fixed or movable device in any possibility form (comprising non-transitory computer-readable recording medium), such as, and RAM, ROM, flash memories or other similar device, or the combination of said apparatus.
Before describing the proposed method as shown in Figure 13 and Figure 14, the signal transmission mechanism shared for implementing aforementioned unlicensed spectrum is described herein.Figure 15 illustrates the content of the configuration signal message according in exemplary embodiment of the present invention.Usually, can exist and show that the signal transmission of authorizing the multimode ability of assisting access (licensed-assistedaccess, LTE-U) and Wi-Fi is machine-processed for the mode by use capability signaling message 1502 to the device being directly or indirectly attached to base station.
Capability signaling message 1502 can be sent by LTE-U radio interface (such as, 1203a, 1203b).Capability signaling message 1502 can also be sent in mandate frequency spectrum by LTE radio interface (such as, 1205a, 1205b).Transmitting capacity signaling message can send, to indicate the multimode ability of LTE-U and Wi-Fi from PCell control plane by authorizing frequency range LTE interface (such as, 1205a, 1205b).Capability signaling message 1502 can be sent by Wi-Fi radio interface (1204a, 1204b).
As a part for signal transmission mechanism, common alignment indicator 1503 can be there is or be total to locating information unit.Similarly, scale of relevancy indicators (not shown) or scale of relevancy indicators information unit can also be used.Aforementioned designator or information unit can embed in ability signaling message.Such as, can using capability signaling message 1502 as system information (SystemInformation, SI) part for message is launched, and bit unit can be there is to indicate whether to support the plural mould operation of common location in the System information block (SystemInformationBlock, SIB) 1501 as designator 1503 or information unit.Multi-Mode Base Station (eNB) can periodically transmitting capacity signaling message.
In addition, several being included in the system information in SIB1501 are for describing the configuration of multi-mould radio.Such as, SIB1501 can containment mapping entry 1504, the identifier of it comprises (being not limited to) LTE (and/or LTE-U) base station (such as, 200).Identifier can be, such as, and community ID, E-UTRAN cell ID (E-UTRANcellidentity, ECI) or E-UTRAN Cell Global Identifier symbol (E-UTRANcellglobalidentifier, ECGI).Map entry 1504 can also comprise the identifier of LTE (and/or LTE-U) wireless device, such as comprise Cell Radio Network Temporary Identifier/Identity, Cell-RNTI (CellRadioNetworkTemporaryIdentity, C-RNTI), Temporary Mobile Subscriber Identity (TemporaryMobileSubscriberIdentity, M-TMSI), S Temporary Mobile Subscriber Identity (S-TMSI), Internet protocol (InternetProtocol, the IP) address of being assigned by LTE network.Map entry 1504 can also comprise the identifier of Wi-Fi device, and IEEE802.11 medium education (MediaAccessControl, the MAC) address that described identifier can be (such as) is assigned by Wi-Fi network entity or IP address.The existence of map entry 1504 can imply correlation or the common location of LTE-U radio interface and Wi-Fi interface.Such as, if wireless device is regarded as common positioner, so map entry 1504 is regarded as common positioner and by the identifier of tape deck by indicating wireless device.
Whether capability signaling message 1502 can comprise to be used to indicate supports the bit of common location plural mould operation unit 1505 and can be included in IEEE802.11 beacon message.Multi-Mode Base Station/access point can periodically send IEEE802.11 beacon message.Whether some positions that capability signaling message 1502 can comprise system information 1506 further can be included in IEEE802.11 beacon message with the configuration describing multi-mould radio.Capability signaling message 1502 optionally can comprise at least one information unit 1507 for further expanding.
When occurring that signaling message exchanges between base station and the device being attached to base station, signaling message can comprise the mapping relations between the instruction of common location multi-mould radio and different radio access technologies, such as, between LTE-U radio interface and Wi-Fi radio interface.Such as, wireless device can launch locating information or mapping relation information altogether during entering network process or association process.
Be similar to base station, the exemplary locating information altogether of multimode wireless devices can comprise bit unit, is used to indicate and whether supports the plural mould operation of common location; Several bits of system information, for describing the configuration of multi-mould radio; And map entry, it comprises the identifier of LTE (and/or LTE-U) base station.The example of identifier can comprise community ID, E-UTRAN cell ID (E-UTRANcellidentity, ECI) and E-UTRAN Cell Global Identifier (E-UTRANcellglobalidentifier, ECGI).Mapping table can be included in other LTE (and/or LTE-U) wireless device of communication and the identifier of Wi-Fi device further.The IP address that the identifier of LTE wireless device can be comprised community RNTI (C-RNTI), Temporary Mobile Subscriber Identity (M-TMSI), S Temporary Mobile Subscriber Identity (S-TMSI) and be assigned by LTE network.The identifier of Wi-Fi device can comprise the IEEE802.11MAC address and IP address of being assigned by Wi-Fi network entity.Map entry can imply correlation or the common location of LTE-U radio interface and Wi-Fi interface.
When radio entity (no matter it is multimode wireless devices or base station) receives the radio signal in the first source according to a radio access technologies and finds that described radio signal (such as, from multimode altogether positioned radio electricity reflector) to be correlated with the radio signal from the second source used received by other radio access technologies of identical or substantially the same unlicensed spectrum or substantially similar time, the first source can be regarded as being in same position with the second source.If the reflector in the reflector in the first source and the second source to be positioned on same device or very close to each other, so this situation may be there is.Radio entity can measure the characteristics of signals received, and such as, signal strength signal intensity, interference level, MIMO matrix etc. maybe can receive the measurement of these characteristics of signals from external source.Radio entity can use measurement result to configure the Future radio communication between other radio access technologies and the first source and/or the second source subsequently, and described first source and the second source are regarded as being in same position.Radio entity can also based on this measurement result by information transmitting to other radio entity, such as, another base station or another wireless device.The information launched can also by other base station or another wireless device for configuring the Future radio communication of other radio access technologies.
Such as, if radio entity is obtaining LTE-U signal measurement result with another radio entity direct communication or while auditing communication from another radio entity, so LTE-U signal measurement result can be applied to configuration Wi-Fi communications setting.Similarly, if alternatively radio entity obtains Wi-Fi signal measurement, so Wi-Fi signal measurement can be applied to configuration LTE-U communications setting.
Measurement result can be fed back by using same radio access technology channel.Such as, by the transmitting of Wi-Fi data, the measurement of Wi-Fi signal can be fed back to Wi-Fi access point (accesspoint, AP) from Wi-Fi device.For another example, LTE control plane (such as, by authorizing frequency range LTEPCell) can be passed through the measurement of LTE-U signal is fed back to LTE-UeNB from LTE-U device.Otherwise measurement result can also use another radio access technologies channel to feed back.In this case, locating information (or relevant information) and measurement result may be used for providing information feedback, interference level to measure and launching channel coding mode (such as, modulation and encoding scheme altogether; Modulationandcodingscheme, MCS) adjustment.
Such as, frame loss rate can be used as the designator (MCS such as, selecting data to launch) of link circuit self-adapting by conventional Wi-Fi device.By having the information of unauthorized band quality condition, can by considering that these information make link circuit self-adapting decision-making.In addition, the information of unauthorized band quality condition may be used for adjustment MIMO and launches configuration (such as, MIMO precoding is selected) and determine again to launch strategy, such as, and the number of maximum retransmit restriction.
Figure 13 illustrates according in exemplary embodiment of the present invention for sharing the flow chart of the signal transfer method of unlicensed spectrum between the different radio access technologies used by base station.Base station can have the LTE-U receiver and Wi-Fi receiver that are in same position.A basic premise is, if between two radio access technologies completely or substantially shared frequencies, so channel information (such as, channel condition information, interference level) can be similar.In the case, the channel information of acquisition or can be assumed to be the channel status of another radio access technologies from the burden (overhead) of a radio access technologies, measures to save excess channel.Therefore, execution step S1301 before, by hypothesis channel information will similar or by rely on previous channel information measure or acquisition, base station can obtain the channel information of a radio access technologies from another radio access technologies.
In step S1301, the receiver via the base station with the first radio access technologies is received the first transmission by base station on unlicensed spectrum.First transmission can from supporting that another multimode wireless devices of multiple radio access technologies (such as, LTE-U and Wi-Fi) receives (such as, S601).Such as, multimode wireless devices can have common location LTE-U receiver and Wi-Fi receiver.In step S1302, base station calculates first channel information (such as, S602) of the first transmission by transmitting in response to reception first.Substituting as step S1302, if another device of such as multimode wireless devices etc. measures channel, so base station can obtain channel information from the external source that such as multimode wireless devices itself waits.In step S1303, base station is by the first channel information configuration second transmission (such as, S604) based on the first transmission.In step S1304, the second transmission will be launched in base station on unlicensed spectrum via the reflector with the second radio access technologies.Second transmission can be the stable customer traffic (such as, S603) based on channel information configuration, or the second transmission can be the feedback information of the channel information comprising to go out as calculated, and the described channel information gone out as calculated will send external source to.
In step S1301, by auditing set the 3rd transmission being transmitted to second wireless device (it is not base station) of multimode first wireless device, on unlicensed spectrum, receive the first transmission via the receiver with the first radio access technologies can be implemented (such as, S501).3rd transmission is in fact not set gives base station, but set to second wireless device, and described second wireless device can not containing the common positioning transceiver with Wi-Fi and LTE-U radio access technologies.But, if the channel information of the first radio access technologies between base station and multimode first wireless device is similar to the channel information of the second radio access technologies between base station and multimode first wireless device, so can calculate the channel information be associated with the second radio access technologies, for use in the subsequent transmission via the second radio access technologies based on the 3rd transmission be associated with the first radio access technologies.
In addition, before step S1304, base station can will comprise the 4th transmitting of the first channel information to multimode first wireless device via the reflector with the second radio access technologies on unlicensed spectrum, back to notify the first channel information of calculating to make the first channel information calculated can be used for multimode first wireless device to multimode first wireless device in step S1302.
Should note, in the configuration performed in step S1303, second transmission configuration can also be used for or be used further to configuration other device one or more (being equivalent to the first multimode wireless devices) to the configuration of the first multimode wireless devices, maybe can have and feature like communication class between base station and wireless device.In this way, unnecessary measurements and calculations can be minimized.
Be similar to step S1301 to S1304, base station can also obtain channel information after the transmission.Such as, base station can via the reflector with the first radio access technologies of base station on unlicensed spectrum by the 5th transmitting to first wireless device (such as, S101).Subsequently, base station can receive six transmission from the second multimode wireless devices via the receiver with the second radio access technologies of base station on unlicensed spectrum.6th transmission can be included on unlicensed spectrum from the 5th feedback information transmitted that the second multimode wireless devices is launched.Feedback information can comprise the second channel information from base station to the second multimode wireless devices.Subsequently, base station can be transmitted based on second channel information configuration the 7th and on unlicensed spectrum, launch the 7th transmission via the reflector with the second radio access technologies.
Above-mentioned first radio access technologies can be LTE-U or Wi-Fi, and the second radio access technologies is different from the first radio access technologies and also can is LTE-U or Wi-Fi.
Before step S1301, multiple radio access technologies can be supported to indicate it by emissivities signaling message in base station.Capability signaling message can comprise common alignment indicator and support to indicate it common station-keeping mode launched, and for described transmitting, channel information can be total to positioned radio electricity transceiver by use and suppose the communication channel for different radio access technologies.If multiple radio transceiver is substantially the same with the communication channel of another device or similar in specific frequency spectrum, so described multiple radio transceiver can be defined as " being in same position "; Otherwise if two radio transceivers are close to or are placed in same equipment, so these two radio transceivers can be regarded as " being in same position ".Capability signaling message can also comprise the map information of common positioner.As previously mentioned, map information can including (for example) common alignment indicator, and whether the described instruction of alignment indicator altogether external device (ED) is regarded as being in same position with the identifier of base station and external device (ED).
Figure 14 illustrates according in exemplary embodiment of the present invention for sharing the flow chart of the signal transfer method of unlicensed spectrum between the different radio access technologies used by multimode wireless devices.In step S1401, multimode wireless devices can receive the first transmission (such as, 101) on unlicensed spectrum via the receiver with the first radio access technologies.In step S1402, multimode wireless devices can transmit in response to reception first and calculate first channel information (such as, S104) of the first transmission.In step S1403, multimode wireless devices can launch the second transmission (such as, S103) on unlicensed spectrum via the reflector with the second radio access technologies.The operating principle of multimode wireless devices is similar to base station and therefore not repeated description.Fig. 1 to Fig. 9 and its corresponding character narrate illustrate each exemplary embodiment and its corresponding character narrate of the method as disclosed in Figure 13 and Figure 14.
Fig. 1 is the signal transmission figure sharing the method for unlicensed spectrum between different access technologies relating to channel measurement according to the explanation of in exemplary embodiment of the present invention.
In general, if the first multimode wireless devices has multiple transceiver, described transceiver has the different radio access technologies covering identical or substantially the same unlicensed spectrum, so communication period on unlicensed spectrum at different radio access technologies and the second multimode wireless devices, the multiple transceiver communicated with the second multimode wireless devices can have same or similar channel characteristics.In addition, the communication between the first multimode wireless devices and the second multimode wireless devices is not necessarily direct.In fact, the first multimode wireless devices can by indirectly auditing the communication between the second multimode wireless devices and the 3rd device the channel characteristics that obtain between the communication channel between the first multimode wireless devices and the second multimode wireless devices.Also be like this for the second multimode wireless devices.By the known channel feature of a radio access technologies, same channel feature can be used further to the communication of the second radio access technologies, therefore will not need extra measurement.
Exemplary embodiment relates at least one Multi-Mode Base Station 11, supports the multimode wireless devices 15 of at least LTE-U and Wi-Fi and UE, such as, and Wi-Fi device 13.Multi-Mode Base Station 11 and multimode wireless devices 15 are common positioners.
In step S101, Wi-Fi data are launched via the first radio access technologies (such as, Wi-Fi) in base station 11, and Wi-Fi data are set is received by Wi-Fi device 13.In step s 102, the set Wi-Fi data of Wi-Fi device 13 of giving are born on the first channel by multimode wireless devices 15.In step S104, multimode wireless devices 15 can perform the measurement of the first channel based on auditing of Wi-Fi data, even if Wi-Fi data are not set give multimode wireless devices 15.In step s 103, multimode wireless devices 15 can launch LTE-U data according to the measurement of step S104 via the second radio access technologies (such as, LTE-U) on a second channel.In this way, for the channel information between the base station 11 of LTE-U radio access technologies and multimode wireless devices 15, the communication by auditing different radio access technologies is confirmed, even if LTE-U reflector and receiver (that is, transceiver) not yet perform channel measurement.
In order to describe the exemplary embodiment of Fig. 1 in detail, the exemplary embodiment of Fig. 2 can relate to Multi-Mode Base Station feedback information and according to the configuration of feedback information by base station.In step s 201, base station 11 is launched via the first radio access technologies (such as, Wi-Fi) and is comprised the Wi-Fi data of user load, and described Wi-Fi data are set is received by Wi-Fi device 13.In step S202, the set Wi-Fi data for Wi-Fi device 13 are born on the first channel by multimode wireless devices 15.In step S204, multimode wireless devices 15 can perform the measurement of the first channel based on auditing of Wi-Fi data.In step S203, multimode wireless devices 15 can according to the measurement of step S204 via the second radio access technologies (such as, LTE-U) transmitting feedback information on a second channel, described feedback information comprises at least channel information, such as, channel condition information, interference level, suggestion MIMO pre-encoder matrix etc.In step S206, base station can be configured to next transmitting and subsequent transmission of common location multimode wireless devices 15 on a second channel by use second radio access technologies based on the feedback information received from step S203, because the channel characteristics that the Wi-Fi on unlicensed spectrum launches is identical or closely similar by the channel characteristics be regarded as with LTE-U launches.
Should note, the configuration performed in step S206 can also be used for or be used further to configuration other device one or more (it is equivalent to common location multimode wireless devices 15), maybe can have and channel characteristics like communication class that base station 11 is located between multimode wireless devices 15 together.In this way, unnecessary measurements and calculations can be minimized.This concept is also like this for the embodiment of Fig. 3 to Fig. 9.
The exemplary embodiment of Fig. 3 is similar to the exemplary embodiment of Fig. 1, but measures and subsequent configuration is performed by multimode wireless devices and radio access technologies is different.In step S301, Multi-Mode Base Station 31 launches LTE-U reference signal via the first radio access technologies (such as, LTE-U), and LTE-U reference signal is set is received by LTE-U device 33.In step s 302, the set LTE-U reference signal for LTE-U device 33 is audited on the first channel by multimode wireless devices 35.In step s 304, multimode wireless devices 35 can perform the measurement of the first channel based on auditing of LTE-U reference signal.In step S305, multimode wireless devices 35 can be configured to next transmitting and multiple subsequent transmission of base station 31 on a second channel via the second radio access technologies (such as, Wi-Fi).In step S303, the configuration according to step S305 is launched Wi-Fi data via the second radio access technologies (such as, Wi-Fi) by multimode wireless devices 35 on a second channel.
In order to describe the exemplary embodiment of Fig. 3 in detail, the exemplary embodiment of Fig. 4 can relate to base station feedback information and according to the configuration of feedback information by base station.In step S401, LTE-U reference signal is launched via the first radio access technologies (such as, LTE-U) in base station 31, and LTE-U reference signal is set is received by LTE-U device 33.In step S402, the set LTE-U reference signal for LTE-U device 33 is comprised the first channel information in itself second channel by multimode wireless devices 35 is born.In step s 404, multimode wireless devices 35 can perform the measurement of the first channel based on auditing of LTE-U reference signal.In step S403, multimode wireless devices 35 can according to the measurement of step S404 via the second radio access technologies (such as, Wi-Fi) transmitting feedback information on a second channel, described feedback information comprises at least channel information, such as, channel condition information, interference level, suggestion MIMO pre-encoder matrix etc.In step S406, base station 31 can be configured to next transmitting and subsequent transmission of common locating wireless device 35 on a second channel by use second radio access technologies based on the feedback information received from step S403.In step S405, base station 31 can launch Wi-Fi data based on the configuration of step S406 by using the second radio access technologies on a second channel.
Fig. 5 illustrates and relates to channel measurement according to the explanation of in exemplary embodiment of the present invention and based on the signal transmission figure of method sharing unlicensed spectrum between different radio access technologies of subsequent configuration auditing transmitting.The exemplary embodiment of Fig. 5 relates at least Multi-Mode Base Station 51, Wi-FiAP53 and the multimode wireless devices 55 that are in same position.In step S501, multimode wireless devices 55 will launch Wi-Fi data by using Wi-Fi radio access technologies (that is, by using Wi-Fi transceiver 1253a1253b), and described Wi-Fi data are set is received by Wi-FiAP53.In step S502, the transmitting of step S501 is born on the first channel by base station 51.In step S504, base station 51 will perform channel measurement and subsequent channel calculating based on Wi-Fi data auditing in step S502.In step S505, base station 51 will by next transmitting to multimode wireless devices 55 using LTE-U radio access technologies (that is, by using LTE-U transceiver 1203a1203b) to configure the channel measurement based on step S504 on a second channel.In step S503, LTE-U data are transmitted into multimode wireless devices 55 by the configuration based on step S505 by base station 51.Described configuration can comprise (being not limited to) arranges MIMO pre-coding matrix based on the channel measurement of step S504.
Fig. 6 illustrates the signal transmission figure sharing the method for unlicensed spectrum according to the explanation of in exemplary embodiment of the present invention between the auxiliary access (licensed-assistedaccess, LTE-U) of mandate and Wi-Fi radio access technologies.The exemplary embodiment of Fig. 6 relates at least Multi-Mode Base Station 61 and multimode wireless devices 65 that are in same position.In step s 601, Wi-Fi data are transmitted into base station 61 by using Wi-Fi radio access technologies by multimode wireless devices 65.In step S602, the Wi-Fi data based on step S601 are performed channel measurement and calculate with the channel information obtaining such as channel condition information and interference level etc. by base station 61.The Wi-Fi data of step S601 optionally can also comprise suggestion MIMO pre-encoder matrix.In step s 604, base station 61 can configure next transmitting on a second channel based on the measurements and calculations of step S602.In step S603, LTE-U data will be transmitted into multimode wireless devices 65 by using LTE-U radio access technologies by base station 61.
Fig. 7 illustrates the signal transmission figure sharing the method for unlicensed spectrum according to another explanation in exemplary embodiment of the present invention between the auxiliary access (licensed-assistedaccess, LTE-U) of mandate and Wi-Fi radio access technologies.The exemplary embodiment of Fig. 7 relates at least one Multi-Mode Base Station 61 and multimode wireless devices 65 that are in same position.In step s 701, LTE-U data are transmitted into base station 61 by using LTE-U radio access technologies by multimode wireless devices 65.In step S702, the LTE-U data based on step 701 are performed channel measurement and calculate with the channel information obtaining such as channel condition information and interference level etc. by base station 61.The LTE-U data of step S701 optionally can also comprise suggestion MIMO pre-encoder matrix.In step S704, base station 61 can configure next on a second channel based on the measurements and calculations of step S702 and launch.In step S703, Wi-Fi data will be transmitted into multimode wireless devices 65 by using Wi-Fi radio access technologies by base station 61.
Fig. 8 illustrates that the variant being similar to Fig. 7 according to the present invention illustrates and is authorizing the signal transmission figure sharing the method for unlicensed spectrum between auxiliary access (licensed-assistedaccess, LTE-U) and Wi-Fi radio access technologies.The exemplary embodiment of Fig. 8 relates at least Multi-Mode Base Station 61 and multimode wireless devices 65 that are in same position.In step 801, multimode wireless devices 65 receives LTE-U data by using LTE-U radio access technologies from base station 61.In step S802, the LTE-U data based on step 801 are performed channel measurement and calculate with the channel information obtaining such as channel condition information and interference level etc. by multimode wireless devices 65.The LTE-U data of step S801 optionally can also comprise suggestion MIMO pre-encoder matrix.In step S803, multimode wireless devices 65 can configure next on a second channel based on the measurements and calculations of step S802 and launch.In step S803, Wi-Fi data will be transmitted into multimode wireless devices 65 by using Wi-Fi radio access technologies by multimode wireless devices 65.
Fig. 9 illustrates the signal transmission figure sharing the method for unlicensed spectrum between the auxiliary access (licensed-assistedaccess, LTE-U) of mandate and Wi-Fi radio access technologies relating to channel feedback and subsequent configuration according to the explanation of in exemplary embodiment of the present invention.The exemplary embodiment of Fig. 9 relates at least Multi-Mode Base Station 61 and multimode wireless devices 65 that are in same position.In step S901, Wi-Fi data will be transmitted into multimode wireless devices 65 by using Wi-Fi reflector by base station 61 on the first channel.In step S902, multimode wireless devices 65 will perform channel measurement and calculate with the channel information obtaining the first channel based on Wi-Fi data.In step S903, the feedback information of the measurement comprising step S902 is transmitted into base station 61 by using LTE-U reflector by multimode wireless devices 65.In step S906, base station 61 is by based on the transmitting of LTE-U feedback configuration to multimode wireless devices 65 and other common positioner.In step S905, LTE-U data will be transmitted into multimode wireless devices 65 by base station 61 on a second channel.
For subject application disclose element in the detailed description of embodiment, action or instruction and should not be construed as purposes of the invention for definitely crucial or necessary, unless so described clearly.And each in indefinite article as used herein " (a/an) " can comprise one to begin a project.If only expect one, term " single " or similar language so will be used.In addition, as used herein, term before the list of multiple project and/or multiple project kind " in any one " is set comprises described project and/or project kind individually or in conjunction with other project and/or other project kind " in any one ", " in any combination ", " in any multiple " and/or " in multiple any combinations ".In addition, " group " is set as used herein, the term comprises any number project, comprises zero.In addition, " number " is set as used herein, the term comprises any number, comprises zero.
Last it is noted that above each embodiment is only in order to illustrate technical scheme of the present invention, be not intended to limit; Although with reference to foregoing embodiments to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein some or all of technical characteristic; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of various embodiments of the present invention technical scheme.
Claims (20)
1. a signal transfer method, for sharing unlicensed spectrum between the different radio access technologies of the base station use by the multiple radio access technologies of support, it is characterized in that, described signal transfer method comprises:
On unlicensed spectrum, the first transmission is received via the receiver with the first radio access technologies;
The first channel information of described first transmission is calculated in response to receiving described first transmission;
Based on described first channel information configuration second transmission of described first transmission; And
On described unlicensed spectrum, described second transmission is launched via the reflector with the second radio access technologies.
2. signal transfer method according to claim 1, is characterized in that, receives described first transmission comprise via the described receiver with described first radio access technologies on described unlicensed spectrum:
Described first transmission is received by auditing set the 3rd transmission sending the second wireless device not being described base station to of multimode first wireless device; And
Described first channel information based on described first transmission configures multiple transmission of will launch on described unlicensed spectrum via the described reflector with described second radio access technologies.
3. signal transfer method according to claim 2, is characterized in that, before described second transmission of transmitting, also comprises:
To the 4th transmitting of described first channel information be comprised to described multimode first wireless device on described unlicensed spectrum via the described reflector with described second radio access technologies.
4. signal transfer method according to claim 1, is characterized in that, also comprises:
Via the described reflector with described first radio access technologies on described unlicensed spectrum by the 5th transmitting to first wireless device; And
On described unlicensed spectrum, the 6th transmission is received from the second multimode wireless devices via the described receiver with described second radio access technologies.
5. signal transfer method according to claim 4, is characterized in that, also comprises:
On described unlicensed spectrum, receive the feedback information of described 5th transmission from described second multimode wireless devices via described receiver, wherein said feedback information comprises the second channel information from described base station to described second multimode wireless devices;
Transmit based on described second channel information configuration the 7th; And
On described unlicensed spectrum, described 7th transmission is launched via the described reflector with described second radio access technologies.
6. signal transfer method according to claim 1, is characterized in that, described first radio access technologies is LTE-U or Wi-Fi, and described second radio access technologies is different from described first radio access technologies and is LTE-U or Wi-Fi.
7. signal transfer method according to claim 2, is characterized in that, by audit described 3rd transmission receive described first transmission before, also comprise:
Emissivities signaling message is with the support of instruction to multiple radio access technologies.
8. signal transfer method according to claim 7, is characterized in that, by audit described 3rd transmission receive described first transmission before, also comprise:
Determine whether the common alignment indicator in described capability signaling message is set to effective; And
In response to determining described alignment indicator to be altogether set to effective, described first transmission and the described 3rd is transmitted relevant.
9. signal transfer method according to claim 7, it is characterized in that, described capability signaling messages embedding has System information block and comprises the map entry making the information between described first radio access technologies to described second radio access technologies relevant.
10. a base station, it can support multiple radio access technologies, and it is characterized in that, described base station comprises:
Have the receiver of the first radio access technologies, it is configured for and receives the first transmission on unlicensed spectrum;
Processor, it is couple to described receiver and is configured for the channel information calculating described first transmission in response to receiving described first transmission; And transmit based on the described channel information configuration second of described first transmission; And
Reflector, it is couple to described processor and is configured for launches described second transmission via the second radio access technologies on described unlicensed spectrum.
11. 1 kinds of signal transfer methods, for sharing unlicensed spectrum between the different radio access technologies of the multimode wireless devices use by the multiple radio access technologies of support, it is characterized in that, described signal transfer method comprises:
On unlicensed spectrum, the first transmission is received via the receiver with the first radio access technologies;
The first channel information of described first transmission is calculated in response to receiving described first transmission; And
On described unlicensed spectrum, the second transmission is launched via the reflector with the second radio access technologies.
12. signal transfer methods according to claim 11, is characterized in that, receive described first transmission comprise via the described receiver with described first radio access technologies on described unlicensed spectrum:
Described first transmission is received by auditing set 3rd transmission of launching towards another wireless device being not described multimode wireless devices from base station.
13. signal transfer methods according to claim 12, is characterized in that, launch described second transmission also comprise via the described reflector with described second radio access technologies on described unlicensed spectrum:
Based on described second transmission of described first channel information configuration of described first transmission.
14. signal transfer methods according to claim 12, is characterized in that, also comprise:
Determine whether the common alignment indicator in capability signaling message to be set to effectively; And
In response to determining described alignment indicator to be altogether set to effectively, described first transmission and the described 3rd is transmitted relevant.
15. signal transfer methods according to claim 14, is characterized in that, also comprise:
In response to described first channel information that relevant to the described second channel information that the described 3rd transmits described first transmits, described first channel information based on described first transmission configures multiple transmission of will launch on described unlicensed spectrum via the described reflector with described second radio access technologies.
16. signal transfer methods according to claim 12, is characterized in that, by audit described 3rd transmission receive described first transmission before, also comprise:
Emissivities signaling message is with the support of instruction to multiple radio access technologies.
17. signal transfer methods according to claim 16, it is characterized in that, described capability signaling messages embedding has System information block and comprises the map entry making the information between described first radio access technologies to described second radio access technologies relevant.
18. signal transfer methods according to claim 11, is characterized in that, described first radio access technologies is LTE-U or Wi-Fi, and described second radio access technologies is different from described first radio access technologies and is LTE-U or Wi-Fi.
19. signal transfer methods according to claim 12, is characterized in that, in response to by audit the 3rd transmission receive described first transmission before, also comprise:
In response to described first channel information of calculating, the feedback information comprising described first channel information is transmitted into described base station.
20. signal transfer methods according to claim 19, is characterized in that, described feedback information also comprises at least one in MIMO precoder information, interference level and the described first signal strength signal intensity transmitted.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201462059168P | 2014-10-03 | 2014-10-03 | |
| US62/059,168 | 2014-10-03 | ||
| US14/863,463 US9888388B2 (en) | 2014-10-03 | 2015-09-24 | Signaling method for sharing unlicensed spectrum between different radio access technologies and related apparatuses using the same |
| US14/863,463 | 2015-09-24 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105491570A true CN105491570A (en) | 2016-04-13 |
| CN105491570B CN105491570B (en) | 2019-06-14 |
Family
ID=55633794
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510639865.7A Active CN105491570B (en) | 2014-10-03 | 2015-09-30 | Signal transfer method and the base station for using the signal transfer method |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US9888388B2 (en) |
| CN (1) | CN105491570B (en) |
| TW (1) | TWI590677B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107682031A (en) * | 2016-08-01 | 2018-02-09 | 苹果公司 | For permitting the transceiver architecture of auxiliary access system |
| CN108307396A (en) * | 2017-01-12 | 2018-07-20 | 华为技术有限公司 | A kind of method and apparatus communicated on exempting from licensed band |
| CN109716848A (en) * | 2016-11-14 | 2019-05-03 | 苹果公司 | The LAA/Wi-Fi shared for 5GHz antenna coexists |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10165553B2 (en) * | 2014-07-29 | 2018-12-25 | Htc Corporation | Device and method of handling communication operations in a licensed frequency band and an unlicensed frequency band |
| US12022379B2 (en) * | 2014-12-17 | 2024-06-25 | Comcast Cable Communications, Llc | Methods for dynamically adjusting range of a wireless signal |
| US20160345345A1 (en) * | 2015-05-21 | 2016-11-24 | Qualcomm Incorporated | Methods and apparatus for signal timing detection, sharing, and interference avoidance |
| CN106304099B (en) * | 2015-06-04 | 2022-05-03 | 索尼公司 | Device for wireless communication, spectrum management device and user equipment |
| EP3185646B1 (en) * | 2015-12-22 | 2018-11-07 | Intel IP Corporation | Method for sharing a wireless transmission medium in a terminal device and wireless communication device and wireless communication circuit related thereto |
| US10805953B2 (en) * | 2016-02-04 | 2020-10-13 | Ofinno, Llc | Channel access procedures in a wireless network |
| US9924369B2 (en) | 2016-03-31 | 2018-03-20 | Corning Optical Communication Wireless Ltd | Selective non-distribution of received unlicensed spectrum communication signals by a remote unit(s) into a distributed communications system (DCS) |
| US10736125B2 (en) * | 2016-05-06 | 2020-08-04 | Qualcomm Incorporated | Radio access technology (RAT) aggregation on a shared communication medium |
| US10517021B2 (en) | 2016-06-30 | 2019-12-24 | Evolve Cellular Inc. | Long term evolution-primary WiFi (LTE-PW) |
| EP3310013B1 (en) * | 2016-10-13 | 2020-07-15 | Nokia Technologies Oy | Sharing resources in an unlicensed frequency band |
| WO2018080390A1 (en) | 2016-10-31 | 2018-05-03 | Telefonaktiebolaget Lm Ericsson (Publ) | Systems and methods of sharing channel information between co-located radio nodes |
| KR20180096978A (en) * | 2017-02-22 | 2018-08-30 | 삼성전자주식회사 | Apparatus and method for sharing radio frequency path in wireless communication system |
| CN112469045B (en) * | 2019-09-06 | 2023-11-17 | 上海华为技术有限公司 | Method, device and equipment for sharing spectrum resources |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100113053A1 (en) * | 2008-10-31 | 2010-05-06 | Maik Bienas | Method of accessing a physical random access channel, method of signalling access information for accessing a physical random access channel, mobile communication terminal and base station |
| CN102812772A (en) * | 2010-03-17 | 2012-12-05 | 高通股份有限公司 | Method and apparatus for establishing and maintaining peer-to-peer (p2p) communication on unlicensed spectrum |
| WO2014111309A1 (en) * | 2013-01-16 | 2014-07-24 | Telefonaktiebolaget L M Ericsson (Publ) | Radio communication in unlicensed band |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101709505B1 (en) | 2010-07-02 | 2017-02-23 | 엘지전자 주식회사 | The apparatus and method for supporting that a mobile station communicate with two or more networks in a mobile communication system |
| CN103621138B (en) | 2011-06-21 | 2017-08-11 | 瑞典爱立信有限公司 | It is used for the method and apparatus for performing measurement in wireless network |
| TW201445906A (en) | 2013-03-07 | 2014-12-01 | Interdigital Patent Holdings | Range extension methods and procedures for future WiFi |
| US10044438B2 (en) * | 2014-02-17 | 2018-08-07 | Qualcomm, Incorporated | Carrier sense adaptive transmission (CSAT) measurements in shared spectrum |
-
2015
- 2015-09-24 US US14/863,463 patent/US9888388B2/en active Active
- 2015-09-30 CN CN201510639865.7A patent/CN105491570B/en active Active
- 2015-10-02 TW TW104132498A patent/TWI590677B/en active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100113053A1 (en) * | 2008-10-31 | 2010-05-06 | Maik Bienas | Method of accessing a physical random access channel, method of signalling access information for accessing a physical random access channel, mobile communication terminal and base station |
| CN102812772A (en) * | 2010-03-17 | 2012-12-05 | 高通股份有限公司 | Method and apparatus for establishing and maintaining peer-to-peer (p2p) communication on unlicensed spectrum |
| WO2014111309A1 (en) * | 2013-01-16 | 2014-07-24 | Telefonaktiebolaget L M Ericsson (Publ) | Radio communication in unlicensed band |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107682031A (en) * | 2016-08-01 | 2018-02-09 | 苹果公司 | For permitting the transceiver architecture of auxiliary access system |
| CN107682031B (en) * | 2016-08-01 | 2019-11-12 | 苹果公司 | For permitting the transceiver architecture of auxiliary access system |
| CN109716848A (en) * | 2016-11-14 | 2019-05-03 | 苹果公司 | The LAA/Wi-Fi shared for 5GHz antenna coexists |
| CN109716848B (en) * | 2016-11-14 | 2020-05-12 | 苹果公司 | LAA/Wi-Fi coexistence for 5GHz antenna sharing |
| CN108307396A (en) * | 2017-01-12 | 2018-07-20 | 华为技术有限公司 | A kind of method and apparatus communicated on exempting from licensed band |
Also Published As
| Publication number | Publication date |
|---|---|
| TW201615042A (en) | 2016-04-16 |
| US9888388B2 (en) | 2018-02-06 |
| CN105491570B (en) | 2019-06-14 |
| US20160100318A1 (en) | 2016-04-07 |
| TWI590677B (en) | 2017-07-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105491570B (en) | Signal transfer method and the base station for using the signal transfer method | |
| CN110999103B (en) | Electronic device, method, and medium for wireless communication | |
| US11546020B2 (en) | Communication method, communications apparatus, network device, and terminal | |
| US9680617B2 (en) | Method of transmitting reference signal in unlicensed spectrum for LTE-LAA system and wireless device using the same | |
| CN109219973B (en) | Neighbor management system and method in communication system using beamforming | |
| EP4106458A1 (en) | Electronic device for wireless communication, method, and computer readable storage medium | |
| TWI767084B (en) | Communication device, communication method, and program | |
| WO2017119467A1 (en) | User device, base station, signal reception method, and signal transmission method | |
| CN109392144A (en) | Communication means and communication equipment | |
| EP4114083A1 (en) | Electronic device and method for wireless communication, and computer-readable storage medium | |
| CN111937473A (en) | System and method for providing time domain allocation in a communication system | |
| CN107925915B (en) | User terminal, radio base station, and radio communication method | |
| CN116455434A (en) | Terminal and wireless communication method | |
| JP7268676B2 (en) | electronic device | |
| CN109983729B (en) | Wireless communication method for transmitting reference signal resource indication | |
| EP3280071A1 (en) | Wireless communication device and method | |
| EP4135449A1 (en) | Electronic device and method for wireless communication, and computer-readable storage medium | |
| CN113261360B (en) | Electronic device and method for wireless communication, computer-readable storage medium | |
| WO2018128029A1 (en) | Terminal device, base station device, method and recording medium | |
| US20220377747A1 (en) | Method, device and computer readable medium for channel quality measurement | |
| WO2012046573A1 (en) | Relay station, base station, and wireless communication system and method | |
| CN117812709A (en) | Resource allocation method and communication device | |
| CN111416697A (en) | Method and equipment for configuring cell wireless network temporary identifier |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |